Abstract：
:Resistance among mycobacteria leading to multidrug-resistant and extensively drug-resistant tuberculosis is a major threat. However, nanotechnology has provided new insights in drug delivery and medicine development. This is the first comparative report to determine the activity of chemically and biologically synthesised silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) against mycobacteria. Screening data revealed the high mycobactericidal efficiency of AgNPs, with minimum inhibitory concentrations (MICs) of <3μg/mL, whereas no such activity was exhibited by AuNPs at concentrations up to 100μg/mL. Moreover, in vitro and ex vivo THP-1 infection model assays showed greater efficacy of chemical AgNPs compared with biogenic AgNPs to inhibit active and dormant stage mycobacterial growth. Up to 40% cytotoxicity against human cell lines was observed at a AgNP concentration of 10× MIC (30μg/mL) after 48h. AgNPs were shown to have more specificity towards mycobacteria than towards other Gram-negative and Gram-positive pathogenic bacteria. The selectivity index was found to be in the range of 11-23, indicating the potential of these nanoparticles for use in developing new therapeutics for tuberculosis.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Singh R,Nawale LU,Arkile M,Shedbalkar UU,Wadhwani SA,Sarkar D,Chopade BAdoi
10.1016/j.ijantimicag.2015.03.014subject
Has Abstractpub_date
2015-08-01 00:00:00pages
183-8issue
2eissn
0924-8579issn
1872-7913pii
S0924-8579(15)00171-5journal_volume
46pub_type
杂志文章abstract：:In this study, we analysed the antimicrobial susceptibility of 92 strains of Achromobacter spp. isolated from clinical samples to 18 antimicrobial agents. The disk diffusion method and Etest were compared with the agar dilution method, and the breakpoints of susceptibility and resistance for the disk diffusion method ...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2009.08.015
更新日期：2010-01-01 00:00:00
abstract：:Owing to its high morbidity and mortality, nosocomial pneumonia represents a particularly serious illness and one of the most frequent complications in ventilated patients admitted to the Intensive Care Unit. Gram-negative microorganisms, such as Pseudomonas aeruginosa, Acinetobacter baumannii and Stenotrophomonas mal...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2005.11.005
更新日期：2006-03-01 00:00:00
abstract：:Four hundred methicillin-resistant Staphylococcus aureus strains (MRSA) from different geographical areas in Malaysia were tested for mupirocin susceptibility using minimum inhibitory concentration (MIC) determination. The majority of these strains (98.75%) were susceptible to mupirocin with MICs of < or = 4 mg/l. Fif...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(01)00314-4
更新日期：2001-05-01 00:00:00
abstract：:A recent report identified significant reductions or disappearance of viral load in COVID-19 patients given a combination of hydroxychloroquine and azithromycin. The present communication discusses some common pharmacokinetic properties of these two drugs that may be linked to a potential underlying mechanism of actio...
journal_title：International journal of antimicrobial agents
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doi：10.1016/j.ijantimicag.2020.106007
更新日期：2020-06-01 00:00:00
abstract：:The in vitro activity of a new fluoroquinolone, trovafloxacin (CP-99,219) was compared with that of ten other agents against 100 clinical isolates in the Bacteroides fragilis group. Trovafloxacin was the most active quinolone (MIC(90), 1 microg/ml) followed by sparfloxacin (MIC(90), 8 microg/ml), levofloxacin (MIC(90)...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(97)00014-9
更新日期：1997-05-01 00:00:00
abstract：:We sought to evaluate published evidence regarding clinical or microbiological outcomes related to the use of inhaled antibiotics other than aminoglycosides, polymyxins and aztreonam. A systematic search of PubMed and Scopus databases as well as bibliographies of eligible articles was performed. In total, 34 eligible ...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2014.10.008
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abstract：:Bumped kinase inhibitors (BKIs) are effective against a variety of apicomplexan parasites. Fifteen BKIs with promising in vitro efficacy against Neospora caninum tachyzoites, low cytotoxicity in mammalian cells, and no toxic effects in non-pregnant BALB/c mice were assessed in pregnant mice. Drugs were emulsified in c...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2020.106099
更新日期：2020-09-01 00:00:00
abstract：:Quinolone and macrolide resistance of Campylobacter jejuni and Campylobacter coli mainly depend on a mutation in gyrA and in 23S rDNA, respectively. In order to detect quinolone and/or macrolide resistant C. jejuni and C. coli strains, a macrolide and quinolone line probe assay (MQ-LiPA) was developed and 42 C. jejuni...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(03)00178-x
更新日期：2003-10-01 00:00:00
abstract：:Given emerging uropathogen resistance to more recent antibiotics, old antibiotics used for uncomplicated urinary tract infection (UTI) warrant re-examination. In this study, the urinary antibacterial activities of fosfomycin and nitrofurantoin were investigated by determining the urinary inhibitory titre and urinary b...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2019.07.018
更新日期：2019-10-01 00:00:00
abstract：:The antimicrobial activities of levofloxacin, clarithromycin and KRM-1648 against Mycobacterium tuberculosis (MTB) and Mycobacterium avium complex (MAC) residing in Mono Mac 6 human macrophage-like cells (MM6-Mphis) and A-549 human type II alveolar epithelial cells (A-549 cells) were studied. We measured the antimicro...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(00)00163-1
更新日期：2000-09-01 00:00:00
abstract：:Carbapenemase-producing Klebsiella pneumoniae (CP-Kp) are currently among the most important nosocomial pathogens in many geographic regions. A retrospective study was conducted between 2010 and 2014 in four hospitals located in a high-prevalence area (Athens, Greece) to describe the clinical features, treatment and o...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2016.01.011
更新日期：2016-04-01 00:00:00
abstract：:This paper presents the results of a pilot study of difficult-to-treat patients (exhibiting several previous treatment failures or detection of extended-spectrum beta-lactamase [ESBL] strains) with chronic bacterial prostatitis (CBP) who underwent treatment with fosfomycin trometamol (FT) and N-acetyl-L-cysteine (NAC)...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2020.105935
更新日期：2020-07-01 00:00:00
abstract：:In the 21st century, we face the problems of escalating antibiotic resistance, difficult-to-treat infections and slowed new drug development. Healthcare practitioners are increasingly recognising the importance of good antimicrobial stewardship. Various strategies such as formulary management, prior approval, clinical...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2004.09.001
更新日期：2005-01-01 00:00:00
abstract：:Antimicrobial resistance can make the efficient treatment of bacterial infections in humans and animals more difficult. Antimicrobial use in food animals may be one of the factors contributing to resistance. The Spanish surveillance network VAV has established a baseline of antimicrobial resistance in Escherichia coli...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(00)00153-9
更新日期：2000-07-01 00:00:00
abstract：:Polymyxins were recently approved for the clinical treatment of carbapenem-resistant Enterobacteriaceae (CRE) infections in China. The aim of this study was to determine the prevalence and molecular mechanisms of polymyxin-resistant CRE prior to the clinical application of polymyxin and to evaluate the potential for e...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2020.106262
更新日期：2020-12-23 00:00:00
abstract：:In November 2015, the first plasmid-encoded colistin resistance gene, mcr-1, was described in animals and in humans in China. Subsequently, a multitude of further studies was performed and quite recently the global spread of mcr-1 as well as the occurrence of a new gene variant, mcr-2, was reported. To obtain an overv...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2017.03.007
更新日期：2017-08-01 00:00:00
abstract：:Previous in vivo studies using a human-simulated regimen of ceftaroline/avibactam 600/600mg every 8h (q8h) showed activity against extended-spectrum β-lactamase-, AmpC- and KPC-producing Enterobacteriaceae with minimum inhibitory concentrations (MICs) ≤ 1 μg/mL. Here we sought to determine the efficacy of this human-s...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2014.07.021
更新日期：2014-12-01 00:00:00
abstract：:Pseudomonas aeruginosa (PA) is a major cause of healthcare-associated infections. Antipseudomonal carbapenems are among the antimicrobial agents used to treat PA infections, but several mechanisms of resistance, including the production of a carbapenemase (CP), may compromise their clinical efficacy. The objectives of...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2020.105959
更新日期：2020-06-01 00:00:00
abstract：:As a follow-up to our 2009 survey, in order to explore opinion and practice on the epidemiology and management of meticillin-resistant Staphylococcus aureus (MRSA) in Europe, we conducted a second survey to elicit current opinions on this topic, particularly around antibiotic choice, dose, duration and route of admini...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/S0924-8579(15)30002-9
更新日期：2015-04-24 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2011.07.006
更新日期：2011-11-01 00:00:00
abstract：:Triple therapy combining the protease inhibitor telaprevir with interferon-α and ribavirin is a promising new option for long-term treatment of hepatitis C. The interaction potential of telaprevir has not yet been fully elucidated. The in vitro potency of telaprevir to inhibit P-glycoprotein (P-gp, ABCB1) and breast c...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
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更新日期：2014-02-01 00:00:00
abstract：:The molecular mechanisms and characteristics of rifampicin (RIF) resistance in Staphylococcus epidermidis are poorly characterised, even though S. epidermidis is one of the most common nosocomial pathogens associated with indwelling medical device-related infections. The aim of this study was to investigate the evolut...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2017.12.019
更新日期：2018-05-01 00:00:00
abstract：:To characterise the prevalence of β-lactamases and 16S rRNA methylase genes amongst clinical Klebsiella pneumoniae isolates carrying plasmid-mediated quinolone resistance (PMQR) determinants in China, 59 non-duplicate K. pneumoniae isolates harbouring at least one PMQR gene were screened for common β-lactamases and 16...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2010.12.018
更新日期：2011-04-01 00:00:00
abstract：:Dental biofilm harbouring oral bacteria is highly correlated with the progression of dental diseases. Disruption of biofilm formation via anti-adhesion agents is an alternative means to the antibacterial approach. Previous studies have shown that high molecular weight non-dialysable material (NDM) derived from cranber...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2004.10.014
更新日期：2005-03-01 00:00:00
abstract：:Klebsiella pneumoniae carbapenemase-producing K. pneumoniae (KPC-KP) bloodstream infections (BSIs) are related to high mortality rates, and combination therapy has been associated with lower mortality in patients treated mostly with colistin. There is a paucity of studies addressing polymyxin B (PMB) treatment for KPC...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2018.10.010
更新日期：2019-02-01 00:00:00
abstract：:The purpose of this report was to compare two different methods for dose optimisation of antimicrobials. The probability of target attainment (PTA) was calculated using Monte Carlo simulation to predict the PK/PD target of fT>MIC or modelling and simulation of time-kill curve data. Ceftobiprole, the paradigm compound,...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2013.08.016
更新日期：2014-01-01 00:00:00
abstract：:The objective of this study was to assess the comparative effectiveness and safety of antistaphylococcal penicillins (ASPs) and cephalosporins for the definitive treatment of patients with meticillin-susceptible Staphylococcus aureus (MSSA) bacteraemia. PubMed and Scopus electronic databases were searched up to Decemb...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ijantimicag.2014.09.002
更新日期：2014-12-01 00:00:00
abstract：:The main objectives in childhood urinary tract infections are rapid recovery from complaints, prevention of urosepsis and infection-related complications as well as the prevention of renal parenchymal damage. Calculated antibiotic therapy should take the local resistance rates of uropathogens into consideration. The c...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2011.09.006
更新日期：2011-12-01 00:00:00
abstract：:The prominence of staphylococci as the causative agent in bone and joint infections suggests that fusidic acid (FA) has a potentially important role in their treatment. FA has been studied in a broad range of orthopaedic infections, mostly in combination with other antimicrobials. For susceptible organisms, particular...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/s0924-8579(98)00077-6
更新日期：1999-08-01 00:00:00
abstract：:The objective of this study was to better understand the in vitro activity of flomoxef against clinical extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae. A total of 401 ESBL-producing isolates, including 196 Escherichia coli, 124 Klebsiella pneumoniae and 81 Proteus mirabilis, were collected consecuti...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2014.11.012
更新日期：2015-05-01 00:00:00
